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POL-VIO: A Visual Inertial Odometry With Polarization Skylight Compass in Challenge Environment
IEEE Robotics and Automation LettersVisual-inertial odometry with low-cost visual and inertial sensors can provide accurate navigation results in GNSS-denied environment. However, the mainstream methods currently suffer from the inevitable accumulation of position and heading errors over ...
Huaiyi Zhang +5 more
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Skylight Polarization Patterns and the Orientation of Migratory Birds
Journal of Experimental Biology, 1989ABSTRACT Patterns of polarized light present in the clear dusk sky provide directional information relevant to the orientation behaviour of migratory birds. Experiments performed with white-throated sparrows (Zonotrichia albicollis) and American tree sparrows (Spizella arborea), North American night migrants, examined migratory ...
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Skylight polarization patterns at dusk influence migratory orientation in birds
Nature, 1982Over 100 animal species are known to be able to perceive the plane of polarization of linearly polarized light; most of these are arthropods but several molluscs and vertebrates, including man, share this ability1,2. At least five aquatic vertebrates (three fish, a salamander and a larval frog) are capable of oriented movement based on the E-vector of ...
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Polarization Induced Colour Patterns: a Model of the Perception of the Polarized Skylight By Insects
Netherlands Journal of Zoology, 19741. The directions of waggling dances of bees, trained for a feeding place in a given direction, are recorded on a horizontal comb. The comb is covered by a white tent with a central circular opening towards the zenith. 2. The orientation of the dances is seriously disturbed under spectral filters, absorbing UV.
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Journal of comparative physiology, 1980
1. To test the colour pattern hypothesis ofE-vector orientation in the honeybee (van der Glas, 1975) menotactic orientation to unpolarized overhead patterns, in which the colours blend in a gradual transition from one to the other (Fig. 2; stimulus field: 17.7°), has been studied by observation of bees dancing on a horizontal comb.
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1. To test the colour pattern hypothesis ofE-vector orientation in the honeybee (van der Glas, 1975) menotactic orientation to unpolarized overhead patterns, in which the colours blend in a gradual transition from one to the other (Fig. 2; stimulus field: 17.7°), has been studied by observation of bees dancing on a horizontal comb.
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Science of The Total Environment
Atmospheric aerosols significantly affect skylight polarization, yet variations in polarization patterns across distinct aerosol type environments remain insufficiently understood due to limitations in current simulation and measurement techniques. This study integrates advanced simulation and measurement methods to investigate skylight polarization ...
Shuai, Li +5 more
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Atmospheric aerosols significantly affect skylight polarization, yet variations in polarization patterns across distinct aerosol type environments remain insufficiently understood due to limitations in current simulation and measurement techniques. This study integrates advanced simulation and measurement methods to investigate skylight polarization ...
Shuai, Li +5 more
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IEEE Transactions on Pattern Analysis and Machine Intelligence
We developed an intelligent innovative orientation method to improve the accuracy of polarization compasses in harsh conditions: weak skylight polarization patterns resulting from unfavorable weather conditions (e.g., haze, sandstorms) or locally ...
Chong Shen +7 more
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We developed an intelligent innovative orientation method to improve the accuracy of polarization compasses in harsh conditions: weak skylight polarization patterns resulting from unfavorable weather conditions (e.g., haze, sandstorms) or locally ...
Chong Shen +7 more
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Bio-Inspired Polarization Compass
Inquiry@Queen's Undergraduate Research Conference ProceedingsMany emerging technologies like autonomous driving, robotic agriculture, and drone control promise to improve safety and efficiency in multiple sectors, however they require high-precision navigation systems which are currently insufficient.
B. Potter
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Attitude Parameters Determination by the Skylight Polarization Pattern
ACTA PHOTONICA SINICA, 2015任建斌 REN Jian-bin +6 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
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